239267

Cobalt(II) nitrate hexahydrate

ACS reagent, ≥98%

• Synonym(s): Cobaltous nitrate, Cobaltous nitrate hexahydrate, Nitric acid, cobalt(II) salt
• Linear Formula: Co(NO₃)₂ · 6H₂O
• CAS Number: 10026-22-9
• Molecular Weight: 291.03
• MDL number: MFCD00149647
• UNSPSC Code: 12352302
• PubChem Substance ID: 329752523
• NACRES: NA.21

Properties

• grade: ACS reagent
• Quality Level: 200
• assay: ≥98%; 98.0-102.0%
• form: chips; powder, crystals or chunks; solid
• reaction suitability: reagent type: catalyst; core: cobalt
• impurities: ≤0.01% insolubles
• pH: 4 (20 °C, 100 g/L)
• mp: 55 °C (lit.)
• anion traces: chloride (Cl^-): ≤0.002%; sulfate (SO₄^2-): ≤0.005%
• cation traces: Ca: ≤0.005%; Cu: ≤0.002%; Fe: ≤0.001%; K: ≤0.01%; Mg: ≤0.005%; NH₄⁺: ≤0.2%; Na: ≤0.05%; Ni: ≤0.15%; Pb: ≤0.002%; Zn: ≤0.01%
• SMILES string: O.O.O.O.O.O.[Co++].[O-][N+]([O-])=O.[O-][N+]([O-])=O
• InChI: 1S/Co.2NO3.6H2O/c;2*2-1(3)4;;;;;;/h;;;6*1H2/q+2;2*-1;;;;;;
• InChI key: QGUAJWGNOXCYJF-UHFFFAOYSA-N

Description

General description

Cobalt(II)nitrate hexahydrate is a red-brown crystalline structure that is soluble in water and organic solvents. It is commonly used in the preparation of cobalt-based catalysts, pigments, chemicals, and vitamin B12 preparations. Additionally, it serves high-purity cobalt source for use in the electronics industry.

Application

Cobalt(II)nitrate hexahydrate can be used as a catalyst to synthesize:

• 5-Carboxanilide-dihydropyrimidinone derivatives by the condensation of acetoacetanilides, aldehydes, and urea/thiourea.
• Nitro indoles by the nitration of indoles using tert-butyl nitrite as the nitro source.
• Quinazolinones from 2-aminobenzonitriles using alcohols in the presence of phosphine ligand.

Safety Information

• pictograms: GHS03,GHS08,GHS05,GHS07,GHS09
• signalword: Danger
• hcodes: H272,H302,H317,H318,H334,H341,H350i,H360FD,H373,H410
• pcodes: P210 - P273 - P280 - P301 + P312 - P305 + P351 + P338 - P308 + P313
• Hazard Classifications: Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B Inhalation - Eye Dam. 1 - Muta. 2 - Ox. Sol. 2 - Repr. 1B - Resp. Sens. 1 - Skin Sens. 1 - STOT RE 2 Inhalation
• target_organs: Lungs
• Storage Class: 5.1B - Oxidizing hazardous materials
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable